ego trip vs aggrandisement

ego trip and aggrandisement both are nouns.

Word	Noun	Adjective	Verb	Adverb
ego trip	Yes	No	No	No
aggrandisement	Yes	No	No	No

As nouns, aggrandisement is a hypernym of ego trip; that is, aggrandisement is a word with a broader meaning than ego trip:

ego trip: an act undertaken to increase your own power and influence or to draw attention to your own importance
aggrandisement: the act of increasing the wealth or prestige or power or scope of something

Other hypernyms of ego trip include aggrandizement, elevation.

ego trip (noun)	aggrandisement (noun)
an act undertaken to increase your own power and influence or to draw attention to your own importance	the act of increasing the wealth or prestige or power or scope of something